{"id":9187,"date":"2020-12-15T08:30:56","date_gmt":"2020-12-15T08:30:56","guid":{"rendered":"https:\/\/www.mathsweek.ie\/2020\/?p=9187"},"modified":"2024-11-22T17:37:16","modified_gmt":"2024-11-22T17:37:16","slug":"mathematical-christmas-tree","status":"publish","type":"post","link":"https:\/\/www.mathsweek.ie\/2025\/mathematical-christmas-tree\/","title":{"rendered":"Christmas Tree"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;border-width: 0px 0px 0px 0px;border-color:#eaeaea;border-style:solid;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start\" style=\"max-width:1289.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_2_3 2_3 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><style type=\"text\/css\">@media only screen and (max-width:1024px) {.fusion-title.fusion-title-1{margin-top:0%!important; margin-right:0px!important;margin-bottom:30px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-1{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-1 fusion-title-text fusion-title-size-one\" style=\"margin-top:0%;margin-right:0px;margin-bottom:30px;margin-left:0px;\"><div class=\"title-sep-container title-sep-container-left fusion-no-large-visibility fusion-no-medium-visibility fusion-no-small-visibility\"><div class=\"title-sep sep-single sep-solid\" style=\"border-color:#eaeaea;\"><\/div><\/div><h1 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:50;line-height:1.2;\">Mathematical Christmas Tree<\/h1><div class=\"title-sep-container title-sep-container-right\"><div class=\"title-sep sep-single sep-solid\" style=\"border-color:#eaeaea;\"><\/div><\/div><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-bottom:60px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"border-color:#eaeaea;border-top-width:1px;border-bottom-width:1px;\"><\/div><\/div><div ><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"896\" height=\"1238\" title=\"Christmas tree\" src=\"https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.49.36.png\" class=\"img-responsive wp-image-9189\" srcset=\"https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.49.36-200x276.png 200w, https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.49.36-400x553.png 400w, https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.49.36-600x829.png 600w, https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.49.36-800x1105.png 800w, https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.49.36.png 896w\" sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 800px\" \/><\/span><\/div><div class=\"fusion-content-boxes content-boxes columns row fusion-columns-1 fusion-columns-total-1 fusion-content-boxes-1 content-boxes-icon-with-title content-left\" data-animationOffset=\"100%\" style=\"margin-top:0px;margin-bottom:0px;\"><style type=\"text\/css\">.fusion-content-boxes-1 .heading .content-box-heading {color:#191919;}\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-link-icon-hover .heading .content-box-heading,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-link-icon-hover .heading .heading-link .content-box-heading,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box-hover .heading .content-box-heading,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box-hover .heading .heading-link .content-box-heading,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-link-icon-hover.link-area-box .fusion-read-more,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-link-icon-hover.link-area-box .fusion-read-more::after,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-link-icon-hover.link-area-box .fusion-read-more::before,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .fusion-read-more:hover:after,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .fusion-read-more:hover:before,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .fusion-read-more:hover,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box-hover.link-area-box .fusion-read-more,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box-hover.link-area-box .fusion-read-more::after,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box-hover.link-area-box .fusion-read-more::before,\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-link-icon-hover .icon .circle-no,\n\t\t\t\t\t.fusion-content-boxes-1 .heading .heading-link:hover .content-box-heading {\n\t\t\t\t\t\tcolor: #e9a825;\n\t\t\t\t\t}\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box-hover .icon .circle-no {\n\t\t\t\t\t\tcolor: #e9a825 !important;\n\t\t\t\t\t}.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box.link-area-box-hover .fusion-content-box-button {background: #d6ad5a;color: #785510;background-image: -webkit-gradient( linear, left bottom, left top, from( #e8cb90 ), to( #d6ad5a ) );background-image: linear-gradient( to top, #e8cb90, #d6ad5a )}.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box.link-area-box-hover .fusion-content-box-button .fusion-button-text {color: #785510;}\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-link-icon-hover .heading .icon > span {\n\t\t\t\t\t\tbackground-color: #e9a825 !important;\n\t\t\t\t\t}\n\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box-hover .heading .icon > span {\n\t\t\t\t\t\tborder-color: #e9a825 !important;\n\t\t\t\t\t}<\/style><div class=\"fusion-column content-box-column content-box-column content-box-column-1 col-lg-12 col-md-12 col-sm-12 fusion-content-box-hover content-box-column-last content-box-column-last-in-row\"><div class=\"col content-box-wrapper content-wrapper-background link-area-box icon-hover-animation-fade\" style=\"background-color:#dbdbdb;\" data-animationOffset=\"100%\"><div class=\"heading icon-left\"><h2 class=\"content-box-heading\" style=\"font-size:23px;line-height:28px;\">Description and Materials<\/h2><\/div><div class=\"fusion-clearfix\"><\/div><div class=\"content-container\" style=\"color:#707070;\">\n<h6><strong>Description<\/strong><\/h6>\n<p>This puzzle is based on the \u201cTriangle with a Difference\u201d.<br \/>\nYou can play with it using paper and pencil or printing out our Christmas template.<\/p>\n<h6><strong>Materials<\/strong><\/h6>\n<ul>\n<li>Cards<\/li>\n<li>Pencils<\/li>\n<li>Template <a href=\"https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/mathematical-christmas-tree.pdf\">here<\/a><\/li>\n<\/ul>\n<\/div><\/div><\/div><style type=\"text\/css\">\n\t\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .heading-link:hover .icon i.circle-yes,\n\t\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box:hover .heading-link .icon i.circle-yes,\n\t\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-link-icon-hover .heading .icon i.circle-yes,\n\t\t\t\t\t\t.fusion-content-boxes-1 .fusion-content-box-hover .link-area-box-hover .heading .icon i.circle-yes {\n\t\t\t\t\t\t\tbackground-color: #e9a825 !important;\n\t\t\t\t\t\t\tborder-color: #e9a825 !important;\n\t\t\t\t\t\t}<\/style><div class=\"fusion-clearfix\"><\/div><\/div><div class=\"fusion-content-boxes content-boxes columns row fusion-columns-1 fusion-columns-total-1 fusion-content-boxes-2 content-boxes-icon-with-title content-left\" data-animationOffset=\"100%\" style=\"margin-top:0px;margin-bottom:0px;\"><style type=\"text\/css\">.fusion-content-boxes-2 .heading .content-box-heading {color:#191919;}\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-link-icon-hover .heading .content-box-heading,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-link-icon-hover .heading .heading-link .content-box-heading,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box-hover .heading .content-box-heading,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box-hover .heading .heading-link .content-box-heading,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-link-icon-hover.link-area-box .fusion-read-more,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-link-icon-hover.link-area-box .fusion-read-more::after,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-link-icon-hover.link-area-box .fusion-read-more::before,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .fusion-read-more:hover:after,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .fusion-read-more:hover:before,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .fusion-read-more:hover,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box-hover.link-area-box .fusion-read-more,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box-hover.link-area-box .fusion-read-more::after,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box-hover.link-area-box .fusion-read-more::before,\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-link-icon-hover .icon .circle-no,\n\t\t\t\t\t.fusion-content-boxes-2 .heading .heading-link:hover .content-box-heading {\n\t\t\t\t\t\tcolor: #e9a825;\n\t\t\t\t\t}\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box-hover .icon .circle-no {\n\t\t\t\t\t\tcolor: #e9a825 !important;\n\t\t\t\t\t}.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box.link-area-box-hover .fusion-content-box-button {background: #d6ad5a;color: #785510;background-image: -webkit-gradient( linear, left bottom, left top, from( #e8cb90 ), to( #d6ad5a ) );background-image: linear-gradient( to top, #e8cb90, #d6ad5a )}.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box.link-area-box-hover .fusion-content-box-button .fusion-button-text {color: #785510;}\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-link-icon-hover .heading .icon > span {\n\t\t\t\t\t\tbackground-color: #e9a825 !important;\n\t\t\t\t\t}\n\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box-hover .heading .icon > span {\n\t\t\t\t\t\tborder-color: #e9a825 !important;\n\t\t\t\t\t}<\/style><div class=\"fusion-column content-box-column content-box-column content-box-column-1 col-lg-12 col-md-12 col-sm-12 fusion-content-box-hover content-box-column-last content-box-column-last-in-row\"><div class=\"col content-box-wrapper content-wrapper link-area-box icon-hover-animation-fade\" style=\"background-color:rgba(255,255,255,0);\" data-animationOffset=\"100%\"><div class=\"heading icon-left\"><h2 class=\"content-box-heading\" style=\"font-size:23px;line-height:28px;\">Instructions<\/h2><\/div><div class=\"fusion-clearfix\"><\/div><div class=\"content-container\" style=\"color:#707070;\">\n<h6><strong>INSTRUCTIONS<\/strong><\/h6>\n<ol>\n<li>Cut out your Christmas tree decorations<\/li>\n<li>Hang your ornaments on the tree<\/li>\n<li>Place the numbers 1 to 15 so that each ball ornament is the difference between the two ornaments immediately below it, to left and right.<\/li>\n<li>The first three ornaments have been done for you.<br \/>\n5 is the difference between 9 and 4. (9 \u2013 4 = 5)<\/li>\n<li>Discuss strategies<\/li>\n<\/ol>\n<p>Check out this link for extensions:<br \/>\n<a href=\"https:\/\/www.mathsweek.ie\/2025\/maths-at-home-activities\/#activity15triangle\"><strong>https:\/\/www.mathsweek.ie\/2025\/maths-at-home-activities\/#activity15triangle<\/strong><\/a><\/p>\n<p>Please, share your creations on twitter using the #adventSTEAM<br \/>\nWe are looking forward to seeing what you\u2019ve created!<\/p>\n<\/div><\/div><\/div><style type=\"text\/css\">\n\t\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .heading-link:hover .icon i.circle-yes,\n\t\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box:hover .heading-link .icon i.circle-yes,\n\t\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-link-icon-hover .heading .icon i.circle-yes,\n\t\t\t\t\t\t.fusion-content-boxes-2 .fusion-content-box-hover .link-area-box-hover .heading .icon i.circle-yes {\n\t\t\t\t\t\t\tbackground-color: #e9a825 !important;\n\t\t\t\t\t\t\tborder-color: #e9a825 !important;\n\t\t\t\t\t\t}<\/style><div class=\"fusion-clearfix\"><\/div><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"border-color:#eaeaea;border-top-width:1px;border-bottom-width:1px;\"><\/div><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-0{width:66.666666666667% !important;margin-top : 0px;margin-bottom : 20px;}.fusion-builder-column-0 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 2.88%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 2.88%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-0{width:100% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-0{width:100% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_3 1_3 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div ><a class=\"fusion-button button-flat fusion-button-default-size button-orange button-1 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/www.mathsweek.ie\/2025\/00resources\/\"><span class=\"fusion-button-text\">Back to Resources<\/span><\/a><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-bottom:60px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"border-color:#eaeaea;border-top-width:1px;border-bottom-width:1px;\"><\/div><\/div><div ><span class=\" fusion-imageframe imageframe-none imageframe-2 hover-type-none\"><img decoding=\"async\" width=\"400\" height=\"330\" title=\"Screenshot 2020-12-08 at 14.48.55\" src=\"https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.48.55-400x330.png\" class=\"img-responsive wp-image-9190\" srcset=\"https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.48.55-200x165.png 200w, https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.48.55-400x330.png 400w, https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.48.55-600x495.png 600w, https:\/\/www.mathsweek.ie\/2025\/wp-content\/uploads\/2020\/12\/Screenshot-2020-12-08-at-14.48.55.png 788w\" sizes=\"(max-width: 1024px) 100vw, (max-width: 640px) 100vw, 400px\" \/><\/span><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-bottom:60px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"border-color:#eaeaea;border-top-width:1px;border-bottom-width:1px;\"><\/div><\/div><div class=\"fusion-flip-boxes flip-boxes row fusion-columns-1 flip-effect-classic\"><div class=\"fusion-flip-box-wrapper fusion-column col-lg-12 col-md-12 col-sm-12\"><div class=\"fusion-flip-box flip-right\" tabindex=\"0\"><div class=\"flip-box-inner-wrapper\"><div class=\"flip-box-front\" style=\"background-color:#f2f2f2;border-color:rgba(255,255,255,0);border-radius:4px;border-style:solid;border-width:1px;color:#707070;transition-duration:0.4s;\"><div class=\"flip-box-front-inner\"><h2 class=\"flip-box-heading without-text\" style=\"color:#191919;\">What\u2019s behind? STEM tips<\/h2><\/div><\/div><div class=\"flip-box-back\" style=\"background-color:#e9a825;border-color:rgba(255,255,255,0);border-radius:4px;border-style:solid;border-width:1px;color:#ffffff;transition-duration:0.4s;\"><div class=\"flip-box-back-inner\">\n<p><strong>What\u2019s behind? STEM tips<\/strong><\/p>\n<p>This card game involving subtraction will have participants develop their problem-solving strategies.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-1{width:33.333333333333% !important;margin-top : 0px;margin-bottom : 20px;}.fusion-builder-column-1 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 5.76%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 5.76%;}@media only screen and (max-width:1024px) {.fusion-body .fusion-builder-column-1{width:100% !important;order : 0;}.fusion-builder-column-1 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-1{width:100% !important;order : 0;}.fusion-builder-column-1 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-flex-container.fusion-builder-row-1{ padding-top : 0px;margin-top : 0px;padding-right : 0px;padding-bottom : 0px;margin-bottom : 0px;padding-left : 0px;}<\/style><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":9189,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_vp_format_video_url":"","_vp_image_focal_point":[],"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[364],"tags":[338,365,367,397,234],"class_list":["post-9187","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-advent","tag-maths","tag-advent","tag-adventstem","tag-puzzle","tag-steam"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Christmas Tree &#8211; MATHS WEEK IRELAND<\/title>\n<meta name=\"description\" content=\"Maths Week will take place from 11 - 29 Oct. 2025. We will have events and activities for all the family. Visit MathsWeek.ie for more info MATHS WEEK IRELAND\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mathsweek.ie\/2025\/mathematical-christmas-tree\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Christmas Tree &#8211; MATHS WEEK IRELAND\" \/>\n<meta property=\"og:description\" content=\"Maths Week will take place from 11 - 29 Oct. 2025. We will have events and activities for all the family. 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